Pinasti, Titen, Ahmad Mudzakir, and Hernani Hernani. “Pre-Service Chemistry Teacher’s Conception About Chemistry of The Rare Earth Elements”. JTK (Jurnal Tadris Kimiya) 7, no. 1 (June 30, 2022): 91–102. Accessed December 6, 2025. https://journal.uinsgd.ac.id/index.php/tadris-kimiya/article/view/15479.